Machine foe bending- pipe



(No Model.) 3 Sheets-Sheet 1.

J. 0. ORR. MACHINE FOR BBNDING PIPE.

No. 521,417. Patented June 12, 1894.

No Model.) 3 sheets-sheet 2.

J. O. ORR. MACHINE FOR BENDING PIPE.

No. 521,417. Patented June 12,1894.

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(No Model.)

3 Sheets-Sheet 3. J G ORR MACHINE FOR BENDING PIPE.

Patented June 12, 1894.

\u y 0/ a t w W 1 a m B k .1 a w M tttt t w a w 1 y d y a NITEYD' STATESMACHINE FOR B ENDING PIPE.

SPECIFICATION forming part of Letters Patent No. 521,417, dated June 12,1894.

Application filed March 1894- To all whom it may concern- Be it knownthat I, J AMES CHAS. ORR, a subect of the Queen of Great Britain,residing at W nnipeg, in the county of Selkirk and Prov nce of Manitoba,Canada, have invented certain new and useful Improvements in Machinesfor Bending Pipe; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which itappertains to make and use the same.

My invention relates to improvements in machines for bending metalpipes, rods, 850., and its novelty will be fully understood from thefollowing description and claims when taken in conjunction with theannexed drawing, in which- Figure 1, is an elevation of one side of myimproved machine. Fig. 2, is an elevation of theopposite side thereof.Fig. 3, is a longitudinal, central section. Fig. 4, is a transversesection taken in the plane indicated by the line or, at, of Fig. 1. Fig.5, is a detail plan View. 6, is a detail perspective view of one of theadjustable yokes, removed, and Fig. 7, is a detail section showing oneof the side bars of a yoke in a way or slot of one of the standards oruprights.

Referring by letter to said drawingsz-A, indicates the base or bed of myimproved machine, and B, indicates the standards or uprights. Thesestandards or uprights B, may be connected to the bed ,A, .by bolts a, or1n any other approved manner and they are respectively provided with acentral, vertical slot or way b, and vertical or verticallyoblique slotsor ways 0, c, which latter are disposed on opposite sides of the slot b,as illustrated. The said slots 1), o, c, are designed to receive theslidable bearing blocks (1, in which are journaled the shafts of therollers C, D, E, F, and the standards are therefore provided in theslots with the ribs e, to engage grooves in the bearing blocks-so as toprevent casual displacement of said blocks.

G, indicates yokes or yoke-frames through the medium of which therollers O, E, F, are adjusted and held in their adjusted positions.These yoke frames G, have their side bars 9, provided with grooves h, toengage the ribs e, in the slots 0, c, and said yoke frames are alsoprovided with the depending projections Serial No. 502.907- (No model.)

i, which have threaded bores j, for the reception of the jack screws H,as shown in Fig. 3.

The jack screws H, have their lower ends stepped in suitable bearings as70, (see Fig. 3,) and they are provided at an intermediate point oftheir length with gear wheels Z, which wheels Z mesh with the wormscrews m, upon the transverse crank shafts n, whereby it will be seenthat when the said shafts are rotated, the rollers O, E, F, will bemoved with respect to the roller D. Thus the machine may be quickly andeasily adapted for bending pipes, rods, and the like into curves ofvarious degrees, and when desired, the rollers may be brought into suchrelative positions as to enable the machine to straighten crooked pipe.

I, indicates the drive shaft of the machine. This shaft I, is providedat one end with a suitable crank J, and is preferably journaled insuitable bearings carried by the pivoted cap blocks K, so that it may belifted out of the slots 1), for a purpose presently described. The saidshaft I, is also provided with a pinion L, and this pinion meshes with alarge gear wheel M, on the shaft of the roller D, whereby it will beseen that when the shaft I, is rotated, the roller D, will also berotated so as to draw the pipe, rod, or other article to be bent orstraightened, through the machine.

In'some cases, the rotation of the roller D, is insufficient to draw apipe or rod through the machine and I therefore contemplate transmittingpositive motion from the roller 'D, to the roller 0, so that said.roller 0, will assist in feeding the pipe. To this end, I pro vide theshafts of the rollers D, E, with gear wheels p, g, which mesh as shown,and I also provide the shaft of the roller 0, with a gear wheel as 4".Motion is transmitted to this gearr, from the gear q, through the mediumof the gear 15, which is mounted upon a short shaft u,arranged andadapted to be adj ustably fixed in a slot 2;, in one of the standards.By this construction it will be perceived that when it is not desirableto transmit motion to the gear r, the gear t, maybe readily moved out ofengagement with said gear v4", and the gear q.

M, indicates blocks which are fixed in the slots 6, and are designed toprevent downward movement of the roller D 5 and N, indicates blockswhich are arranged in the slots 1), above the blocks (1, of the rollerD, and are designed to prevent upward movement of the roller D. Theselatter blocks N, are remov- 5 able, and consequently it will be seenthatinasmuch as the cap blocks K, may be unfastened and thrown back, theshaft I, and the roller D, may be readily removed from the standards soas to permit of the withdrawal to of a pipe which could not, on accountof its curvature, be otherwise withdrawn.

In order to adapt the machine to work pipes and rods of variousdiameters, I provide the several rollers with peripheral grooves 10, of

[5 various sizes (see Fig. 4); and in order to guide the pipes and rodsas they leave the machine, I provide the vertical, parallel guides P.These guides P, are formed integral with or fixedly connected to adovetail block Q, and said block is arranged and designed to beadjustably fixed by set screws 2, in a groove R, of similar form in thebed A. The groove R, extends the full width of the bed and consequentlyit will be seen that the :5 guides P, may be fixedin alignment with anyone of the peripheral grooves in the roller.

In the practical operation of my invention, when it is desired to use mymachine to bend crooked pipes or rods, the rollers O, F, are adjusted tothe positions shown in Fig. 3, and

the roller E, is lowered to admit of the introduction of the pipebetween it and the roller D, and is then raised through the mechanismdescribed so as to pinch the pipe. The rollers are then turned asdescribed when the pipe will take through the machine in the directionindicated by arrow and will be straightened.

When it is desired to use the machine to curve or bend the pipe, therollers O, F, are adjusted and adjustably fixed according to thecurvature desired and the pipes or rods are passed through the machinein the manner before described.

It will be seen from the foregoing description taken in conjunction withthe drawings that my improved machine is very simple and may bemanufactured very cheaply; that the parts maybe easily adj usted and arenot liable to get out of order, and that the machine may be operatedwith the exercise of but little effort, which is a desideratum.

I'have specifically described the construction and relative arrangementof the several parts of my improved machine in order to impart a fulland clear understanding of the same, butI do not desireto be understoodas confining myself to such specific construction and arrangement assuch changes or modifications may be made in practice as fairly fall.within the scope of my invention.

Having described my invention, what I claim is-- 1. In a machine forbending and straightenin g pi pe,the combination of the bed,thestandards rising from the bed, the rollers j ournaled in suitablebearings in the standards and having peripheral grooves, a dovetailblock or slide arranged in a transverse groove in the bed and carryingvertical guides, and a suitable means for adj ustably fixing the saidblock or slide, substantially as and for the purpose set forth.

2. In a machine for bending and straightening pipe, the combination ofthe standards having vertical slots or ways I), and the vertical orvertically-oblique slots or ways a, c, disposed on opposite sides of thevertical slots or ways b, the roller D,the roller E, journaled inadjustable bearings arranged in the verti- 8c cal ways or slots 1), therollers 0,1, journaled in adjustable bearings arranged in the verticalor vertically-oblique ways or slots 0, c, the adjustable yoke framesengaging the bearings of the rollers O, E, and F, and having projectionsprovided with threaded bores, the screws bearing upon a suitable supportand taking into the threaded bores of the yoke frames, and a suitablemeans for rotating the screws, substantially as specified. 9o

3. In a machine for bending and straightening pipe, the combination ofthe standards having the vertical slots or ways I), and the vertical orvertically-oblique slots or ways, a, c, disposed on opposite sides ofthe vertical slots or ways I), the roller D, having its shaft journaledin bearings in the vertical slots or ways I), the roller E, also havingits shaft j ournaled in adjustable bearings in the vertical slots orWays, the rollers C, F, having their shafts j ournaled in adjustablebearings in the vertical or vertically-oblique slots or ways 0, 0', gearwheels mounted on the shafts of the said rollers C, D, E, F, the shortshaft u, arranged and adapted to be adj ustably fixed in a slot 'L, inone of the standards and the gear Wheel 1%, mounted on said short shaftand adapted to mesh with the gear wheels on the shafts of the rollers 0,and E, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES OI-IAS. ORR.

Witnesses:

CHARLES II. RAEDER, Tnos. E. TURPIN.

